Solenopsis

Solenopsis

is a speciose myrmicine genus with a worldwide distribution. The group is best known for some of its larger members, the fire ants, but most of the diversity in Solenopsis is found in small subterranean species. Several species of fire ants- most notably Solenopsis invicta- have become economically important pests where introduced by human commerce.

Solenopsis invicta

Among the most damaging pest ant species is Solenopsis invicta, a fire ant native to South America. This species has been accidentally imported to the southern United States, eastern Australia, China, and elsewhere. Here a worker fire ant is shown in stereotypical defensive posture, her sting extruded, waving a droplet of venom in the air.
Austin, Texas, USA